電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)是根據通(tong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)導(dao)體(ti)在磁(ci)(ci)(ci)場(chang)(chang)(chang)中受(shou)磁(ci)(ci)(ci)場(chang)(chang)(chang)力的(de)(de)(de)(de)(de)作用(yong)而制成(cheng)的(de)(de)(de)(de)(de)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)內部有(you)(you)一永磁(ci)(ci)(ci)體(ti)，在極間(jian)產生磁(ci)(ci)(ci)場(chang)(chang)(chang)，在磁(ci)(ci)(ci)場(chang)(chang)(chang)中有(you)(you)一個(ge)線(xian)(xian)(xian)圈，線(xian)(xian)(xian)圈兩(liang)端(duan)各(ge)有(you)(you)一個(ge)游絲(si)彈(dan)簧，彈(dan)簧各(ge)連接(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)一個(ge)接(jie)線(xian)(xian)(xian)柱，在彈(dan)簧與線(xian)(xian)(xian)圈間(jian)由(you)(you)一個(ge)轉(zhuan)(zhuan)軸連接(jie)，在轉(zhuan)(zhuan)軸相(xiang)對(dui)(dui)于(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)前(qian)端(duan)，有(you)(you)一個(ge)指(zhi)針(zhen)。當有(you)(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)通(tong)過(guo)時，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)沿彈(dan)簧、轉(zhuan)(zhuan)軸通(tong)過(guo)磁(ci)(ci)(ci)場(chang)(chang)(chang)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)切磁(ci)(ci)(ci)感(gan)線(xian)(xian)(xian)，所以(yi)(yi)受(shou)磁(ci)(ci)(ci)場(chang)(chang)(chang)力的(de)(de)(de)(de)(de)作用(yong)，使(shi)線(xian)(xian)(xian)圈發生偏轉(zhuan)(zhuan)，帶動(dong)轉(zhuan)(zhuan)軸、指(zhi)針(zhen)偏轉(zhuan)(zhuan)。由(you)(you)于(yu)(yu)磁(ci)(ci)(ci)場(chang)(chang)(chang)力的(de)(de)(de)(de)(de)大(da)(da)(da)(da)(da)(da)小(xiao)隨電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)增(zeng)(zeng)大(da)(da)(da)(da)(da)(da)而增(zeng)(zeng)大(da)(da)(da)(da)(da)(da)，所以(yi)(yi)就可(ke)(ke)(ke)以(yi)(yi)通(tong)過(guo)指(zhi)針(zhen)的(de)(de)(de)(de)(de)偏轉(zhuan)(zhuan)程度來(lai)觀(guan)察電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)的(de)(de)(de)(de)(de)大(da)(da)(da)(da)(da)(da)小(xiao)。一般可(ke)(ke)(ke)直(zhi)(zhi)接(jie)測(ce)(ce)(ce)量(liang)(liang)微(wei)安(an)或(huo)毫安(an)數量(liang)(liang)級的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，為(wei)(wei)測(ce)(ce)(ce)更大(da)(da)(da)(da)(da)(da)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)應有(you)(you)并(bing)聯電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻器(qi)(qi)(qi)（又稱(cheng)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)）。主要(yao)采(cai)用(yong)磁(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)測(ce)(ce)(ce)量(liang)(liang)機(ji)(ji)構(gou)。分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻值(zhi)(zhi)(zhi)要(yao)使(shi)滿量(liang)(liang)程電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)通(tong)過(guo)時，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)滿偏轉(zhuan)(zhuan)，即電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)指(zhi)示達到最(zui)大(da)(da)(da)(da)(da)(da)。對(dui)(dui)于(yu)(yu)幾安(an)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，可(ke)(ke)(ke)在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)內設置(zhi)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)。對(dui)(dui)于(yu)(yu)幾安(an)以(yi)(yi)上的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，則(ze)采(cai)用(yong)外附分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)。大(da)(da)(da)(da)(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻值(zhi)(zhi)(zhi)很小(xiao)，為(wei)(wei)避免引線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻和接(jie)觸電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻附加于(yu)(yu)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)而引起(qi)誤(wu)差(cha)，分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)要(yao)制成(cheng)四(si)端(duan)形式，即有(you)(you)兩(liang)個(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)端(duan)，兩(liang)個(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓端(duan)。直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)主要(yao)采(cai)用(yong)磁(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)或(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)系(xi)測(ce)(ce)(ce)量(liang)(liang)機(ji)(ji)構(gou)(見(jian)機(ji)(ji)械(xie)式指(zhi)示電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)測(ce)(ce)(ce)量(liang)(liang)機(ji)(ji)構(gou))，這些測(ce)(ce)(ce)量(liang)(liang)機(ji)(ji)構(gou)的(de)(de)(de)(de)(de)測(ce)(ce)(ce)量(liang)(liang)基本量(liang)(liang)是電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，可(ke)(ke)(ke)用(yong)來(lai)直(zhi)(zhi)接(jie)測(ce)(ce)(ce)小(xiao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)。對(dui)(dui)于(yu)(yu)大(da)(da)(da)(da)(da)(da)量(liang)(liang)值(zhi)(zhi)(zhi)的(de)(de)(de)(de)(de)直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，磁(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)測(ce)(ce)(ce)量(liang)(liang)機(ji)(ji)構(gou)要(yao)使(shi)用(yong)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)，也(ye)(ye)就是并(bing)聯電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻。它(ta)(ta)的(de)(de)(de)(de)(de)作用(yong)是將(jiang)大(da)(da)(da)(da)(da)(da)部分(fen)(fen)(fen)被(bei)測(ce)(ce)(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)。對(dui)(dui)約10A以(yi)(yi)下的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)多采(cai)用(yong)內附分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi);對(dui)(dui)更大(da)(da)(da)(da)(da)(da)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)，則(ze)使(shi)用(yong)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)。它(ta)(ta)采(cai)取四(si)端(duan)結構(gou)(圖a)，具有(you)(you)兩(liang)個(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)端(duan)，兩(liang)個(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位端(duan)。交(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)可(ke)(ke)(ke)采(cai)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)系(xi)或(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)系(xi)測(ce)(ce)(ce)量(liang)(liang)機(ji)(ji)構(gou)。為(wei)(wei)使(shi)磁(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)系(xi)測(ce)(ce)(ce)量(liang)(liang)機(ji)(ji)構(gou)也(ye)(ye)能用(yong)于(yu)(yu)測(ce)(ce)(ce)量(liang)(liang)交(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，可(ke)(ke)(ke)利用(yong)整(zheng)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)或(huo)熱電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)偶等器(qi)(qi)(qi)件先將(jiang)交(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)轉(zhuan)(zhuan)換為(wei)(wei)直(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu);由(you)(you)它(ta)(ta)們組合而成(cheng)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao)分(fen)(fen)(fen)別稱(cheng)為(wei)(wei)整(zheng)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)式電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)(見(jian)整(zheng)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)式電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)表(biao)(biao)(biao)(biao))、熱電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)式電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)。為(wei)(wei)擴大(da)(da)(da)(da)(da)(da)量(liang)(liang)程以(yi)(yi)測(ce)(ce)(ce)量(liang)(liang)大(da)(da)(da)(da)(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)，整(zheng)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)式電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)也(ye)(ye)采(cai)用(yong)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi);電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)系(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)做法同前(qian);電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)(ci)系(xi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)則(ze)是加粗線(xian)(xian)(xian)圈導(dao)線(xian)(xian)(xian)、減(jian)少匝數。對(dui)(dui)于(yu)(yu)更大(da)(da)(da)(da)(da)(da)的(de)(de)(de)(de)(de)測(ce)(ce)(ce)量(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)(zhi)(zhi)需配合電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)互(hu)感(gan)器(qi)(qi)(qi)使(shi)用(yong)。通(tong)常可(ke)(ke)(ke)利用(yong)分(fen)(fen)(fen)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)(qi)(qi)和交(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)數字電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓表(biao)(biao)(biao)(biao)構(gou)成(cheng)交(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)數字電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)(liu)表(biao)(biao)(biao)(biao)。

液(ye)(ye)(ye)(ye)控伺(si)(si)(si)(si)(si)(si)服(fu)(fu)(fu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)主要是(shi)指(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)液(ye)(ye)(ye)(ye)伺(si)(si)(si)(si)(si)(si)服(fu)(fu)(fu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa),它(ta)在(zai)接(jie)受電(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣(qi)模擬信(xin)(xin)號(hao)(hao)后，相應輸(shu)出(chu)調(diao)制的(de)(de)(de)流量(liang)(liang)和壓(ya)(ya)(ya)力。它(ta)既是(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)液(ye)(ye)(ye)(ye)轉(zhuan)(zhuan)換(huan)(huan)元件，也(ye)是(shi)功(gong)率(lv)(lv)放大(da)元件，它(ta)能夠將(jiang)小功(gong)率(lv)(lv)的(de)(de)(de)微弱電(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣(qi)輸(shu)入(ru)(ru)(ru)信(xin)(xin)號(hao)(hao)轉(zhuan)(zhuan)換(huan)(huan)為大(da)功(gong)率(lv)(lv)的(de)(de)(de)液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)能（流量(liang)(liang)和壓(ya)(ya)(ya)力）輸(shu)出(chu)。在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)液(ye)(ye)(ye)(ye)伺(si)(si)(si)(si)(si)(si)服(fu)(fu)(fu)系統中，它(ta)將(jiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣(qi)部分(fen)與液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)部分(fen)連接(jie)起來(lai)，實(shi)現(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)液(ye)(ye)(ye)(ye)信(xin)(xin)號(hao)(hao)的(de)(de)(de)轉(zhuan)(zhuan)換(huan)(huan)與液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)放大(da)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)液(ye)(ye)(ye)(ye)伺(si)(si)(si)(si)(si)(si)服(fu)(fu)(fu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)是(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)液(ye)(ye)(ye)(ye)伺(si)(si)(si)(si)(si)(si)服(fu)(fu)(fu)系統控制的(de)(de)(de)核心。液(ye)(ye)(ye)(ye)控伺(si)(si)(si)(si)(si)(si)服(fu)(fu)(fu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)是(shi)在(zai)伺(si)(si)(si)(si)(si)(si)服(fu)(fu)(fu)系統中將(jiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)信(xin)(xin)號(hao)(hao)輸(shu)入(ru)(ru)(ru)轉(zhuan)(zhuan)換(huan)(huan)為功(gong)率(lv)(lv)較大(da)的(de)(de)(de)壓(ya)(ya)(ya)力或流量(liang)(liang)壓(ya)(ya)(ya)力信(xin)(xin)號(hao)(hao)輸(shu)出(chu)的(de)(de)(de)執行元件。它(ta)是(shi)一種(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)液(ye)(ye)(ye)(ye)轉(zhuan)(zhuan)換(huan)(huan)和功(gong)率(lv)(lv)放大(da)元件。伺(si)(si)(si)(si)(si)(si)服(fu)(fu)(fu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)靈敏度高(gao)，快速性好，能將(jiang)很小的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)信(xin)(xin)號(hao)(hao)（例如10毫安）轉(zhuan)(zhuan)換(huan)(huan)成(cheng)(cheng)很大(da)的(de)(de)(de)液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)功(gong)率(lv)(lv)（如幾十匹馬(ma)力以(yi)上），可(ke)以(yi)驅動多種(zhong)類(lei)型的(de)(de)(de)負載(zai)。過(guo)去人們曾(ceng)把噴嘴檔(dang)板(ban)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、射流管或滑閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)伺(si)(si)(si)(si)(si)(si)服(fu)(fu)(fu)馬(ma)達等液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)放大(da)裝置都列入(ru)(ru)(ru)伺(si)(si)(si)(si)(si)(si)服(fu)(fu)(fu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)范圍內。20世紀70年(nian)代(dai)以(yi)來(lai)，伺(si)(si)(si)(si)(si)(si)服(fu)(fu)(fu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)一般僅指(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)液(ye)(ye)(ye)(ye)伺(si)(si)(si)(si)(si)(si)服(fu)(fu)(fu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)。典(dian)型的(de)(de)(de)伺(si)(si)(si)(si)(si)(si)服(fu)(fu)(fu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)由永磁力矩(ju)馬(ma)達、噴嘴、檔(dang)板(ban)、閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯、閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)套和控制腔組成(cheng)(cheng)(見圖)。當輸(shu)入(ru)(ru)(ru)線圈通(tong)入(ru)(ru)(ru)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流時，檔(dang)板(ban)向右(you)移(yi)(yi)(yi)動，使右(you)邊(bian)噴嘴的(de)(de)(de)節流作(zuo)(zuo)用加(jia)強(qiang)，流量(liang)(liang)減(jian)少(shao)，右(you)側(ce)背壓(ya)(ya)(ya)上升(sheng)；同時使左(zuo)(zuo)邊(bian)噴嘴節流作(zuo)(zuo)用減(jian)小，流量(liang)(liang)增加(jia)，左(zuo)(zuo)側(ce)背壓(ya)(ya)(ya)下(xia)降(jiang)。閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯兩端的(de)(de)(de)作(zuo)(zuo)用力失去平(ping)衡(heng), 閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯遂向左(zuo)(zuo)移(yi)(yi)(yi)動。高(gao)壓(ya)(ya)(ya)油(you)(you)從S流向C2，送到負載(zai)。負載(zai)回油(you)(you)通(tong)過(guo) C1流過(guo)回油(you)(you)口，進入(ru)(ru)(ru)油(you)(you)箱。閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯的(de)(de)(de)位移(yi)(yi)(yi)量(liang)(liang)與力矩(ju)馬(ma)達的(de)(de)(de)輸(shu)入(ru)(ru)(ru)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流成(cheng)(cheng)正(zheng)比，作(zuo)(zuo)用在(zai)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯上的(de)(de)(de)液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)力與彈簧(huang)力相平(ping)衡(heng)，因此在(zai)平(ping)衡(heng)狀(zhuang)態下(xia)力矩(ju)馬(ma)達的(de)(de)(de)差動電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流與閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯的(de)(de)(de)位移(yi)(yi)(yi)成(cheng)(cheng)正(zheng)比。如果輸(shu)入(ru)(ru)(ru)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流反(fan)向，則流量(liang)(liang)也(ye)反(fan)向。表(biao)中是(shi)伺(si)(si)(si)(si)(si)(si)服(fu)(fu)(fu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)分(fen)類(lei)。

WEIGEL    油缸行程顯示器    DAS10-40PIR S-Nr:943614008 備注645.4024.1000
WEIGEL    電流表    AMEQ72KLZS001
WEIGEL    電流表    PQ96K MESSB.0-10V;SKALA 0-10A Ammeter
WEIGEL    備件    EQ48-MESSB:25A-SKALA:0-25A+STTX*
WEIGEL    電流表    PQ72K 0-10V
WEIGEL    備件    WQ96/2S
WEIGEL    備件    PQ 96
WEIGEL    分流器    shunt 8kA/60mV
WEIGEL    備件    Type: VQ72K 0-750V Production ID: 1TNS08030129R1
WEIGEL    備件    AUE2.2
WEIGEL    表    P72PRS
WEIGEL    電流表    RW96min-max 0-1.0A   表盤尺寸95*95mm
WEIGEL    變送器    A1U2.2 輸入0-5A(48-62HZ) 輸出4-20MA 電壓195-253VAC
WEIGEL    備件    AU2.0 Input: 0...1A  Output: 0...20mA
WEIGEL    備件    FQ96/2
WEIGEL    備件    DAS10-40P1R NR：943622-003
WEIGEL    油缸行程顯示器    DAS10-40PIR
WEIGEL    儀表    PQ48K 0-40microA
WEIGEL    電流表    PQ96K 0-10V:=0-150A
WEIGEL    備件    LSP144
WEIGEL    舵機計時器    TYPE:BG40.×7/3121×0 SERIAL NO.:10T50 0508
WEIGEL    安裝盤    SHUNT ISO.PLATE LARGE 155X90X6MM， 870-93260（R021安裝盤）
WEIGEL    分流器    8000A/60MV
WEIGEL    240°指針表    LSP48(4~20mA 帶零位調整） 48mmX48mm240°指針表
WEIGEL    動鐵式儀表    AC 0..500V （Moving-iron meter AC 0..500 V ）
WEIGEL    電流表    EQ96-X 100/1 0-100A/500A
WEIGEL    備件    AUE2.2
WEIGEL    電壓表    EQ96-X             measure 0-300V   scale 0-300V    無紅線
WEIGEL    安培表    PQ72R 0-20MA
WEIGEL    備件    EQ96K 0-1A =》0-1600A
WEIGEL    分流器安裝盤    SHUNTISO. PLATE LARGE 155X90X6MM TRAFO，870-93260
WEIGEL    電流表    BIEQ 72K 15min 1250/1A
WEIGEL    備件    DV3.001.776C
WEIGEL    電流表    LSP96K
WEIGEL    分流器    8000A/60MV
WEIGEL    備件    Type: VQ72K 0-750V Production ID: 1TNS08030129R1
WEIGEL    電流表    EQ144K/1A/40A
WEIGEL    備件    EQ144K/1A/300A
WEIGEL    電壓轉換器    AU2.0  0-1A
WEIGEL    電流轉換器    AUE2.2  0-1A 4-20mA
WEIGEL    表    250V
WEIGEL    電流表    PQ48K  4...20mA  0...315Bar
WEIGEL    表    100V
WEIGEL    安裝盤    SHUNT ISO.PLATE LARGE 155X90X6MM， 870-93260（R021安裝盤）
WEIGEL    備件    TUA2.2
WEIGEL    電流表    EQ144K/1A/20A
WEIGEL    壓力表    EQ96K50/1 A
WEIGEL    表    PQ48K
WEIGEL    備件    AUE2.2  0-1A  4-20MA   220V
WEIGEL    備件    SUS-01-Q-2/G-220DC
WEIGEL    表    DA12-NA40/F10R 72*24
WEIGEL    變送器    EAZ AIU2.0 輸入(ru)1A 輸出4-20mA

WEIGEL 電流表EQ144K/1A/20A翊霈代理供應

WEIGEL 電流表EQ144K/1A/20A翊霈代理供應